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Hello Everyone,

I have 2011 Corolla LE with 209000 miles on it, only I drive the car and I always did the car service and oil change @ dealership, the car still running on stock spark plugs I didn't change it, There are no issues with the car. Is it too late will it damage the car engine or should I change spark plugs in dealership. Please let me know guys.

Thank you so much for your help.
 

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Get them changed. I'm surprised the dealer hasn't told you that you need to get them changed 100,000 miles ago.
 

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Get them changed. I'm surprised the dealer hasn't told you that you need to get them changed 100,000 miles ago.
Dealership told me to change but i didn’t replace. But thank you so much for quick response.👍😀
 

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My dad done the same thing we replaced his at 209,000 because he had forgotten about them lol and since I am a mechanic I do all the work to it and he said nah I don’t think it needs them so I finally made him buy them when the car got 209,000 on it lol and don’t let the dealership do it you will pay out the tail I work at the dealership lol it literally takes about 10 minutes to do and it’s simple to do make sure you have a 5/8 spark plug socket with the boot or you could break the plug like a few rookies at my shop did and a good long extension and ratchet don’t use power tools on it either it will break them also or cross thread it
 

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Diehard Rams Fan
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You needed to change them at 120k miles! Just do it yourself since it is very easy.
 
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My dad done the same thing we replaced his at 209,000 because he had forgotten about them lol and since I am a mechanic I do all the work to it and he said nah I don’t think it needs them so I finally made him buy them when the car got 209,000 on it lol and don’t let the dealership do it you will pay out the tail I work at the dealership lol it literally takes about 10 minutes to do and it’s simple to do make sure you have a 5/8 spark plug socket with the boot or you could break the plug like a few rookies at my shop did and a good long extension and ratchet don’t use power tools on it either it will break them also or cross thread it
You need a 9/16 or 14mm spark plug socket
 

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Dang working at the dealership I have only used 5/8 and 13/16 in the real old stuff but never seen that
 

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Dang working at the dealership I have only used 5/8 and 13/16 in the real old stuff but never seen that
I was surprised the 1st time I tried to change my plugs. My 5/8 won't even grip the plug.
 

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Diehard Rams Fan
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9/16 or 14? I have never seen a spark plug on either of those sizes
Really? It was one of the things I had to buy to change my plugs on my 2009 Corolla S. I had never seen a 14mm spark plug socket but I now have 2 of them, one magnetic and one with a rubber insert to hold the plug.
 

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I was surprised the 1st time I tried to change my plugs. My 5/8 won't even grip the plug.
That happened to me too, I was like WTF??? Did some research and found oud that the iridium plugs were 14mm.
 

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I was surprised the 1st time I tried to change my plugs. My 5/8 won't even grip the plug.
That’s so weird I do remember one time it was either on a Toyota SUV or truck either a T100 or Tundra that I had to use a 3/4 spark plug socket but never used a 9/16 or 14mm one didn’t even know they made such a thing now the big thing is 18mm in everything nowadays for spark plugs so I guess that’s two more sockets to add with the several 13/16, 5/8, 3/4 and 18mm spark plug sockets that I already have lol always getting us to buy tools somehow
 

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Really? It was one of the things I had to buy to change my plugs on my 2009 Corolla S. I had never seen a 14mm spark plug socket but I now have 2 of them, one magnetic and one with a rubber insert to hold the plug.
I’ll add those to the tool needs lol I talked to some guys at work and they said yeah we see them occasionally on the newer cars being that size I am usually doing more advanced work so I guess that’s why I never have seen them
 
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